Avalanche Forecast

Issued: Apr 7th, 2012 8:08AM

The alpine rating is moderate, the treeline rating is moderate, and the below treeline rating is moderate. Known problems include Loose Wet, Storm Slabs and Deep Persistent Slabs.

robert hemming, Parks Canada

Glacier.

Summary

Problems

Loose Wet

Expect loose releases around trees and rocks to pull the top 20-40cm of snow later in the day as temperatures warm and solar radiation weakens the surface layers

Aspects: North, North East, East, South East, South.

Elevations: All elevations.

Likelihood

Likely

Expected Size

1 - 3

Storm Slabs

60 to 70 cm of recent storm snow has settled into a cohesive slab above a late March crust. Failures within the slab have been observed recently. Sudden planar results are still being observed on the crust.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Possible

Expected Size

1 - 3

Deep Persistent Slabs

The Feb 8 surface hoar is still worth keeping in mind. No recent failures have been observed on this layer. Cornice fall or glide crack failure are the most likely triggers.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

2 - 4

Valid until: Apr 8th, 2012 8:00AM